The pathology of gastric carcinoma changes _'s general knowledge

The pathology of gastric carcinoma changes _'s general knowledge
(1) Emergence position gastric carcinoma of gastric carcinoma can happen to any position of the stomach, more than half happens to stomach sinus portion, lesser curvature and front and back wall, secondly in the cardia department, there are relatively less body of stomach districts.
(2) Huge bodily form attitude dividing type
1.No matter range size of early gastric carcinoma, early pathological change is only limited to the mucous membrane and mucomembranous lower floor. Can divide dislocated upwarping type into ' Polyp type) , shallow the phenotype ' Gastritis type) With the caving in type ' Ulcer type) Three type. 2Type in and divide into 2 a ( The table of rising is simple type) ,2B (smooth table is simple type) And 2 c ( The sunken table is simple type) Three are inferior type. Various the above can have different associations. For instance 2 c +2 a, 2 c +,etc. (Fig. 1) . Diameter call little gastric carcinoma, the diameter Wall have one swollen thing stress the intersection of stomach and behind the sinus little and curved stomach, take the form of, divide foliate slightly, surface not smooth to take the form of particle, it is rotten and see to have. The swollen thing base is slightly narrow and small, the inferior base of a fruit presenting type, the mucous membrane around has not been seen and obviously soaked
( 2) Ulcer type: Account for 1/4 of gastric carcinoma in later period. Is divided into a limitation ulcer type and soaks the ulcer type again, the former's characteristic is the cancerous swelling limitation, take the form of plate, central necrosis. Often have bigger and deeper ulcer; The bottom of ulcer is generally not smooth, the edge rises and takes the form of the dyke or crater, cancerous swelling is soaked to the deep layer, often accompany and bleed, punch. Characteristic to soak ulcer type whether cancerous swelling present growth of soaking etc., form obvious often to around and dark department soak lump, form necrosises central by ulcer,it invade often early and serous coat or take place lymph node shift.
( 3) Soaking type: This type is divided into two kinds too, one, for soaking type of the limitation, the cancer tissue soaks every layer of coat of the stomach, limited to more the intersection of stomach and sinus portion, coat of the stomach that soak increase thick to become hard, wrinkle wall, disappear, have more obvious ulcer and tubercle. The person who soaks a part limited to the stomach, call " soaking type of the limitation " . Another kind fills the soaking type, also called the leather stomach, the cancer tissue is expanded under the mucous membrane, invade and every layer, in extensive range, make the stomach diminish, the coat of the stomach is thick and stiff, the mucous membrane can still exist, there can be congestion edema and have no ulcer.
( 4) Phenotype: Two or more pathological changes person of the compatible above-mentioned type at the same time.
( 5) Pilosity cancer: The cancer organization presents the multi-oven, does not link up each other. Gastric carcinoma substantially as taking place on the basis of shrinking gastritis may belong to the this type, and on the top of body of stomach more.
(3) Organization person who divide can divide into 4 type according to institutional framework. Gland cancer: Including papilla gland cancer, tubular gland cancer and mucus gland cancer,intensity divide into high to split up after splitting up it, in split up with low to split up by 3 kinds; Have not differentiated cancer; Mucus cancer ( Namely print cell cancer of the exhortation) ; Special type cancer: Including gland scale's cancer, scale and cell cancer, one kind of cancers,etc..
Take place according to organization respect can divide into two type. The intestines type: Cancer originated from the enteric gland raw upper skin, the cancer tissue split up better, huge bodily form attitudes were mostly umbrellas type of the gill fungus; Stomach type: Cancer originated from the inherent mucous membrane of stomach, including differentiating cancer and mucus cancer, the cancer tissue split up worse, huge bodily form attitudes are mostly ulcer type and fill the infiltration type.
(4) Shift the route
1.Sow scattered person who soak directly gastric carcinoma can develop by esophagus or duodenum, along mucous membrane or serous coat directly in coat of the stomach. The intersection of cancerous swelling and invade and serous coat, namely easy until neighbouring organ or organization such as liver, pancreas, spleen, transverse colon, jejunum, the intersection of diaphragm and skin, large omentum and the intersection of belly and wall,etc. soak around The cancer cell can also be planted and fallen into places such as the nest,etc. in abdominal cavity, pelvis, ovary and rectum bladder when being lossed.
2.It accounts for 70% of the metastasis of cancer of stomach for the lymph node to shift, cancerous swelling in the stomach underpart often shifts and the lymph node by the arteria coeliaca,etc. under the pylorus, under the stomach, and upper cancerous swelling is often shifted by the pancreas, by the cardia, first-class lymph node of stomach. Cancer may shift the lymph node around the aorta and on the diaphragm in later period. Coeliac lymph node with the intersection of chest and the intersection of conduit and direct traffic, transferable lymph node at clavicular Left deviation.
3.Blood competent to shift, can find cancer cell in the peripheral blood by some patient, can pass portal vein from transformation to liver, and can reach places such as the lung, bone, kidney, brain, meninx, spleen, skin,etc..
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